Unpredictable technological progress, such as the development of autonomous vehicles may also hinder current efforts to forecast future demand
It says that the business case for HS2 has "fallen apart" and the scheme is "already projected to be massively over its original budget". A statement continues, "it is unlikely to be completed on schedule and there's a significant chance that future technological developments, such as autonomous vehicles, will make it an obsolete technology years before the first train sets off for Birmingham."It says other key findings of its research are:- Projected costs are rising and are likely to be almost £90 billion
- The business case is flawed and hugely overstates the case for HS2
- Demand for travel on HS2 is uncertain
- Timely delivery of the project is very unlikely
- Other proposals would provide greater value for money than HS2's Phase One
- HS2 is unlikely to help develop the economy of North England to the extent that has been suggested.
- The need for increased travel capacity could well be met by new technologies.




